20356156947

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{6505643}}^1$

素因数の和:6505802

約数の個数: 16

約数和(自身を含む): 31227091200

約数和(自身を除く): 10870934253

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 6505643, 19516929, 45539501, 136618503, 969340807, 2908022421, 6785385649, 20356156947]

約数ペア:

[(1, 20356156947), (3, 6785385649), (7, 2908022421), (21, 969340807), (149, 136618503), (447, 45539501), (1043, 19516929), (3129, 6505643)]